| Exam Board | CAIE |
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| Module | P3 (Pure Mathematics 3) |
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| Year | 2020 |
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| Session | June |
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| Topic | Addition & Double Angle Formulae |
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3 Express the equation \(\tan \left( \theta + 60 ^ { \circ } \right) = 2 + \tan \left( 60 ^ { \circ } - \theta \right)\) as a quadratic equation in \(\tan \theta\), and hence solve the equation for \(0 ^ { \circ } \leqslant \theta \leqslant 180 ^ { \circ }\).